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Diagnostic tests used to examine the rectum include a digital rectal exam (DRE), where a doctor inserts a gloved finger into the rectum to check for abnormalities. Flexible sigmoidoscopy allows for visual examination of the rectum and lower colon using a flexible scope. Colonoscopy can also be performed to inspect the entire colon, including the rectum, and may involve taking biopsies or removing polyps. Additionally, imaging studies like MRI or CT scans may be used for further evaluation of rectal conditions.

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1w ago

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